Rotor



Jul? 10, 1945. .c. E. TACK ETAL ROTOR 2 Sheets-Sheet 1 Filed Dec. 12,1942 INVENTORS.

5. (D cad Urea Q.

July 10, 1945. Q TACK ETAL 2,380,085

ROTOR Filed Dec. 12, 1942 2 Sheets-Sheet 2 Ill] 4 III/III] m QINVENTORS. M6Jac7c Zbee Patented July 10, 1945 um'reo STATES PATENTOFFICE vRDTORJ- cal-1 ck and Louis ee cram, 111. a signers to- Americansteel Foundries, Chicago, 1112, a corporation of New Jersey Ap lica ionDo mherl 1942, Serial- 04 350 1 GlaimSi (01. 1 -218,)

Our in n on ela e b ak oquinment and;

mo e particu ar to a ake d s frequent y dos ienated a roto and adopt dfor connection t n asso i ted rotatin member whe eby a d memb r aybdecel a d v. fr nmoans appliedto the rotor. Our novel rotor isparticularly adapted for connection to; the driving wheel of: a trackassociated with. a track-laying vehicle whereby movement ofthe vehiclemay be controlled by braking the rotor. However, I it will beunderstoodzthat therotor may-be-used for any: analogous purpose to.whichit may be suited:

Aniobjectofour invention is to design a rotor V such as above describedwhich will functionas a centrifugal or peripheral blower; air inletsbeing afforded whereby. air. may: be drawn be, tween spaced'annularfriction plates'of the-rotor and thrown outwardly by means of' bladesrextending. between the plates;

Inone embodiment of our invention illustrated herein the. blower blades:are substantially flat and radially: disposed andin -the other' 'illu'strated embodiment said blades are radially-undulate for a purpose moreiully described in the co-pending application Serial No. 431,069,filedinthe United States Patent Ofiice on February 16; 1942, in the name ofCarl Tack, Patent No.- 2, 345,016, March 28, 1944;

In the drawings, Figure .1 is 1 a side elevation of ournovel -rotorandFigure'Zis a sectional view" taken in the radial planes indicated by theline 2-2 of Figure '1. Figure 3' is'afurther'sectional" view taken onthe'line 3l3oi Figured. I 7

Figures 4 to 6 show'a modification of -our novel rotor, Figure-4 being a1 sectional view correspondingto Figure 2, Figure 5 *being a sectionalview corresponding to- Figure 3, and 'Figure 6* being a side elevationtaken from the-right as seen in Figure 4.

Describing our invention in detail and referrihgfirst tothe modificationshown in Figures" 1 to 3, our novel rotor comprises an annular supportmember! of generallycylindrical formand provided: with the inwardly"directed flange thi vin spaced openings 6, 6 for the receptid' r ofmeans'seouring the rotor t an associated rotating member. Integrallyformed on the outer'periphery of the member- 2 is a brake ringcomprising a pair of spaced 'annular friction plat s vI! a HI; e chlatees ef nf outer surface thereof-'adri'ction surface I2 for engagement:with any suitable braking means as Will be clearly md'erstood by thoseskilled in" the art; the suriaees. I2, I2 being relieved at I3, I3 toprevent the wearing of shoulders thereon as will be apparent.

A plurality of blades I4, I4 extend between the plates 8 and I0, and itmay be noted from a consideration of Figure 1 that these blades arepref- .those skilled in the art.

erably undulate in form for a" purpose hereinafter described. It will beapparent that the blades I4; I4 seryeas columns to resist brakingpressures applied to the plates 8 and Ill and,

1 as hereinafter more fully described, saidblades also function asblades of a centrifugal ripheral blower.

Aligned openings IE; IS are formed in the plates 8 and I0 adjacenttheirjuncture with the member 2 and a pluralityof openings I.8, I8(Figure 2) are formed in the member 2, all of "said openings serving asaircinlets and communicating' with the chamber 2|] (Figures 2 and 3)be-' tweentheplates 8 and llli As may beseenin .Figures 1 and 2; theopenings I6," I6 are preferably formed'in alternating relationship withthe openings I8; I8-,' whereby a pair'of aligned openings I6, I6 aredisposed atoneside of each'oi the blades I4, I4 and an openin I8isdisposed at the oppositeside of saidblade.

It will be unde'rstoodthat by means of this arrangementair may be drawninto the"cham-' ber 20 from both sides of the brake ring during rotationof the rotor; said air being thrown outwardly by means of the blades.The alternating arrangement'of the openings I6, I6 and I 8,

l8 facilitates uniform'coolingof the plates 8and' IUand-also tends'toprevent deleterious stress concentrations as may be clearly apparent toIt may be emphasized that the openings I6, I6 in the plate'IIl affordair'inlets in the side of the brakering adjacent the member to whichtherotor is secured by means of the flange 4; thus afiordingair intake,from what is normally adead space between the-rotor and the associatedsupportin member.

Theundulate-fo'rm of the blades I4, -I4,as will be clearlyapparent'tothose skilled in the'art, servesto cause turbulance of the air passingthrough the chamber 20 whereby greater cooling of the plates 8 and IDwill be effected; as more fully described in the above-mentioned co pending application.

It will be understood that the member 2 may be attached in anyconvenientmanner to the associated rotating'element or may even be integraltherewith if desired, and it will be further understood that if desiredthe brake ring may comprise three or more plates with blades extendingbetween adjacent plates" as shown and described in detail in saidco-pending application.

ifi a o'ni f' ou no el r t is hownn Figures 4 to 6 wherein theannuIarsuppOrtmemF e I0 o g n raill i y duca t nnis pro dedwith"the"inturned annular flange I84 havin 'a plurality of openings I06, I06 therethrough for the reception of any convenient means afiordingsecurement for the rotor to an associated rotating member. Integrallyformed on the outer periphery of the member I 02 is a pair of spacedannular friction plates I08 and H0, and extending between said platesare the spaced flat blades I I2, H2 preferably radially disposed,,saidblades H2, H2 corresponding to the blades I 4, I4 described for theprevious modification. The plate I08 is 1;

provided with a plurality of openings H4, I I4 the plates I08 and I Iand the plate I I0 isformed with a plurality of openingsI I8, II B.communieating with the chamber H6 and preferablyah ternately arrangedwith respect to the openings asdoss communicating with the chamber II 6between inlet, through-said member on the opposite side of said blade.

6. In a rotor, asubstantially cylindrically support member,, a pair ofannular friction plates H4, H4, whereby an opening II 4 is disposedatone side of each blade H2 and an opening H8 is formed at the oppositeside of said blade, the alternating relationship of the openings H4, H4and II8, II8 affording equalized cooling of the plates I08 and H0 andserving to reduce the possibility of. undesirable stress concentrations.

It will be understood that during rotation of the rotor air will bedrawn into the chamber I I6 through the openings H4, H4 and H8, H8 andwill be thrown outwardl by means of the blades H2, H2, said rotor thusfunctioning as a centrifugal or. peripherial blower to afiord cooling ofthefriction plates I08 and I I0.

Itis. to be understood that we do not wish to be limited by the exactembodiments of the device shown which are merely by way of illustrationand not limitation as various and other forms of the device-w'ill, ofcourse, be apparent to those skilled in the artwithout departing fromthe spirit of the invention or the scope of the claims.

We claim:

1. In abrake rotor, a substantially cylindrical support member, a brakering formed on the outer periphery thereof and comprising a plurality ofspaced plates, transverse blades extendingbetween said plates, fluidinlets formed in the side of said ring adjacent-its juncture with saidmember, said inlets communicating with the space between said plates,the inlets in one side of said ring being alternately arranged withrespect to the inlets on the opposite side of said ring.

2. In a brake-rotor, a substantially cylindrical support member, a brakering formed on the outer periphery thereof and comprising a plurality ofspaced plates, transverse blades extending between said plates, and airinlets formed in the sides of said ring adjacent its juncture with saidmember, said inlets communicatingv with the space between said plates,and openings in said member also communicating with said space.

3. In a brake rotor, a substantially cylindrical support member, a pairof spaced annular friction platesformed 0n the outer periphery thereof,said plates defining a chambertherebetween, spaced blades extendingbetween said plates, a plurality of openings through said membercommunicating with said chamber, anda plurality of openings through saidplates adjacent their juncture with said member, the openings throughsaid plates being in alignment and bein alter-, nately arranged withrespect to the openings through said member.

4. In a brake rotor, a substantially cylindrical support member, a pairof spaced annular friction plates formed on the outer periphery thereof,spaced blades extending between said plates, and a plurality of openingsthroughsaid plates formed on the outer periphery thereof, radiallyundulate blower blades extending between said plates, and air inletsthrough said plates and through said support member, said inletscommunicating with the'space-between said plates.

7. In a brake rotor, a cylindrical support member, a brake ring on theouter periphery thereof comprising a plurality of plates defining afluid chamber open at its radially outer extremity to afford a fluidoutlet, and blades extending between said plates, said ring having fluidinlet slotsin the sides thereof adjacent the junctureof said ring withsaid support member, said blades joining the outer periphery of saidsupport memher at opposite sides of each .slot, the slots in. one sideof said ring being alternately arranged. with respect to the slots onthe opposite side oi said ring.

8.'In a rotor, a brake ring comprising a pairof annular friction plates,blower blades extend-- ing between said plates, a support memberconnected to said plates and to said blades, aligned. fluid inlets insaid plates at one side of each; blade, and a fluid inlet through saidmem-beron: the opposite side of said blade, said inlets communicatinwith the space between said plates- .9. In a brakerotor, a substantiallycylindrical support member, a brake ring formed on the outer peripherythereof and comprising a pair of spaced plates each having spacedinwardly pro-- jecting portions thereof connecting said ring tosaidmember and forming therewith a plurality offluid'inlets in the sides ofsaid ring, and transverse blades extending between said plates, thespace between said blades and plates providing passages communicatingwith said fluid inlets.

10. Ina brake rotor, a brake ring comprising spaced plates defining afluid chamber, blades extending between and connecting said plates, saidblades forming radial fluid passages through said chamber, an annularintegral support member for said brake ring, fluid inlets through saidplates communicating with said passages and other fluid inletsthroughsaid member communicating with said passages, and means-connected to oneend ising

